Packing device for piston-rods



m; Model.)

H. P. GASKILL.

PACKING DEVICE FOR PISTON RODS.

Patented Aug. 9,1887.

UNITED STATES PATENT OFFICE.

HARVEY F. GASKILL, or LOOKPORT, NEW YORK.

PACKING DEVICE FOR PISTON-RODS.

SPECIFICATION forming part of Letters Patent No. 367,806, dated August 9, 1887.

Application filedMarch 24, 1887. Serial No. 232,319. (No model.) 7

To all whom, it may concern.-

Be it known that I, HARVEY F. GAsKILL,

of the well-known types; but in some cases the accurate fitting ofthe piston-rod has been depended upon to prevent leakage.

' By my'imp-rovements a single striding-box is provided,'located between the cylinders, the gland being preferably constructed in two parts.

In the accompanying drawings, Figure 1 is a central longitudinal section through the cyli nders and pistons of a tandem compound engine providedwith my improvements. Fig. 2 is a transverse sectionat'view taken on line 22ofFig.1.

In the drawings, A represents the highpressure and B the low-pressure cylinder, and G I) their respective pistons. E is the piston-rod connecting said pistons and passing through an intermediate stuffing-box F F are two sleeves fitted at one end, respectivel y, to the cylinders A and B. These sleeves surround the piston-rod, and the packing is located between and about their free ends.

G G represent, respectively, the members of the gland, g'g their followers, H H their bolt-flanges, and h their bolts. 7

I is a shell which forms the stuffing-box. It may have an inwardly-projecting annular flange, i, to form a seat for a fibrous packing, J. I

K L are metallic packing-rings concentrically situated with reference to each other, and the latter being accurately fitted to the piston-rod. These packingrings, as shown, 5 are each constructed of three sections, the joints of the sections in one ring being broken by the sections of the other. 'By tightening the bolts h the fibrous packing J is compressed, and this in turn forces the sections of the me- 0 tallic packing-rings K L closer together to compensate for wear. By loosening the bolts h the parts may be separated to permit the removal and renewal of the packing.

As will be apparent from the foregoing de- 5 scription, this device is simple and economical in construction, and it isel'fective in operation. The details of construction may be considerably varied-as, for example, in the formation of the shell I, the nature of the Go packing J, and the shape and number of the sections in the rings K L.

I claim- I 1. In a tandem engine, the combination of HARVEY F. GASKILL.

Witnesses:

P. H. LINNAU, F. H. SEYMOUR.

sleeves FF, stutfiug-retaining'shell I, stufling 65 

